CN102533047B - Anti-corrosion coating and preparing method and use method thereof - Google Patents
Anti-corrosion coating and preparing method and use method thereof Download PDFInfo
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- CN102533047B CN102533047B CN201110391989.XA CN201110391989A CN102533047B CN 102533047 B CN102533047 B CN 102533047B CN 201110391989 A CN201110391989 A CN 201110391989A CN 102533047 B CN102533047 B CN 102533047B
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Abstract
The invention relates to an anti-corrosion coating, which contains the following components: organic silicon modified epoxy resin, bisphenol F epoxy resin, solvents, carbon black, dispersing agents, glass flakes and auxiliaries. Compared with an alkaline sulfur-containing sewage storage tank coated with the existing anti-corrosion coating special for the sewage storage tank, operation period of an alkaline sulfur-containing sewage storage tank coated with the anti-corrosion coating is remarkably prolonged for more than half a year, and compared with other existing anti-corrosion coatings, the anti-corrosion coating does not fall off in at least one and a half years, and therefore the anti-corrosion coating can be suitable for alkaline sulfur-containing sewage media of coal direct liquefying process. In addition, the invention further relates to a preparing method and a use method of the anti-corrosion coating.
Description
Technical field
The present invention relates to a kind of anticorrosive coating, be specifically related to one and be applicable to direct coal liquefaction process alkaline sewage storage tank internal surface anticorrosive coating.The invention still further relates to preparation method and the using method of this anticorrosive coating.
Background technology
Shenhua Group Erdos coal liquefaction branch office has the production equipment of first set large industrialized coal direct liquefaction production oil product in the world.Direct coal liquefaction technology worldwide received much concern in recent years.But the alkaline sour water that direct coal liquefaction process produces is more special, its process conditions is: working temperature≤50 ℃, alkaline sewage composition: sulfide, ammonia, volatile phenol, condensate oil (the high-content 9000mg/L of sulfide, the high-content 28000mg/L of ammonia, in condensate oil, contain a certain amount of aromatic hydrocarbons and volatile phenol compound, pH value of water solution 11-12).Described alkaline sour water corrosive property complexity, not only serious to Corrosion Of Steel, the anticorrosive coating also tank skin being used destroys large, thereby reduces the work-ing life of anticorrosive coating coating.In storage tank, the anticorrosive coating problem of coming off is the potential safety hazard that the equipment such as alkaline water storage tank exist; also be the bottleneck of confining device long-term operation simultaneously; become a large problem of coal liquefaction chemical field alkaline water processing aspect, protected so need to develop new anticorrosive coating.
At present, the main safeguard procedures of petrochemical industry alkaline sewage storage tank internal surface have: use phenolic aldehyde epoxy anticorrosion coating, modified epoxy anticorrosive coating.If the model of Wuhan Inst. of Material Protection's development and production is that WF40A sewage storage tank special anti-corrosion erosion coating uses in petrochemical industry alkaline sewage storage tank at home in a large number, effect is good.
Composition and the petrochemical industry alkaline sewage difference of direct coal liquefaction process alkalescence sour water storage tank neutral and alkali sour water are larger, therefore just completely different to the requirement of anticorrosive coating.If the model using in a large number in petrochemical industry alkaline sewage storage tank at home, effect is good is WF40A sewage storage tank special anti-corrosion erosion coating, the anticorrosion ability in direct coal liquefaction process alkalescence sour water storage tank just has notable difference; And the phenolic aldehyde epoxy coating of domestic certain manufacturer production moves with this understanding 80 days and just almost all comes off.
The storage tank that how stores alkaline sour water for direct coal liquefaction process is developed suitable anticorrosive coating, meets thus the demand of DCL/Direct coal liquefaction device running steady in a long-term, is still and in prior art, has problem to be solved.
Summary of the invention
An object of the present invention is to provide a kind of new anticorrosive coating, it is the suitable anticorrosive coating of developing for the corrosion of direct coal liquefaction process neutral and alkali sour water storage tank internal surface, to meet the needs of DCL/Direct coal liquefaction relative assembly long-period stable operation.
Another object of the present invention is to provide the preparation method of above-mentioned anticorrosive coating.
Another object of the present invention is to provide the using method of above-mentioned anticorrosive coating.
A kind of anticorrosive coating provided by the invention, it comprises component: modifying epoxy resin by organosilicon, bisphenol F epoxy resin, solvent, carbon black, dispersion agent, glass flake and auxiliary agent.
Based on the gross weight of described anticorrosive coating, the weight percent content of above-mentioned each component can be preferably:
| Modifying epoxy resin by organosilicon | 22.0～45.0％ |
| Bisphenol F epoxy resin | 20.0～30.0％ |
| Solvent | 12.0～20.0％ |
| Carbon black | 0.4～1.0％ |
| Dispersion agent | 0.2～0.8％ |
| Glass flake | 12.0～25.0％ |
| Auxiliary agent | 1.0～2.0％ |
More preferably, based on the gross weight of described anticorrosive coating, the weight percent content of above-mentioned each component can be:
| Modifying epoxy resin by organosilicon | 30.0～40.0％ |
| Bisphenol F epoxy resin | 24.0～28.0％ |
| Solvent | 14.0～18.0％ |
| Carbon black | 0.4～0.8％ |
| Dispersion agent | 0.4～0.6％ |
| Glass flake | 18.0～22.0％ |
| Auxiliary agent | 1.2～2.0％ |
In one embodiment, based on the gross weight of described anticorrosive coating, the weight percent content of above-mentioned each component can be:
| Modifying epoxy resin by organosilicon | 37％ |
| Bisphenol F epoxy resin | 25％ |
| Solvent | 15.2％ |
| Carbon black | 0.5％ |
| Dispersion agent | 0.5％ |
| Glass flake | 20％ |
| Auxiliary agent | 1.8％ |
Wherein,
Described solvent is selected from one or more in single epoxy active diluent, dimethylbenzene, pimelinketone and propyl carbinol;
Described dispersion agent is selected from one or more in aniorfic surfactant or high polymer dispersion;
Described auxiliary agent is selected from one or more in flow agent, defoamer, coupling agent;
Described flow agent is selected from one or more in modified silicon ketone flow agent;
Described defoamer is selected from one or more in modified silicone defoamer;
Described coupling agent is selected from the Trimethoxy silane class coupling agent with epoxide group.
Each component that anticorrosive coating of the present invention comprises all can be used the raw material obtaining by being purchased approach.Preferably, each component that anticorrosive coating of the present invention comprises can be:
The model that described modifying epoxy resin by organosilicon can be produced for Evonik Degussa Corp. is the product of SILIKOPON EF;
Described bisphenol F epoxy resin can be selected from model that South Asia chemical company the produces product that is 170;
Described solvent can be selected from for example, in single epoxy active diluent (epoxy propane butyl ether 501, benzyl glycidyl ether 692), dimethylbenzene, pimelinketone and propyl carbinol one or more;
Described carbon black can be selected from model that Dandong treasured scroll colour carbon black company limited the produces product that is C311;
Described dispersion agent can be selected from the aniorfic surfactant (product that the model of producing as De Qian company is 904, the model that BYK company the produces product that is 104) or high polymer dispersion (model of producing as De Qian company is 926, the product of DP-983, and the model that BYK company produces is 116,140 product) in one or more;
Described glass flake can be selected from the product of 60 order models of Wenan five Yang Fangfucailiaochang productions; Particle diameter is preferably 60 orders;
Described auxiliary agent is selected from one or more in flow agent, defoamer, coupling agent;
Described flow agent is selected from one or more in modified silicon ketone flow agent; The model that the model of producing as De Qian company is 431,495, the product of TSP and BYK company produce is one or more in 306,300 product;
Described defoamer is selected from one or more in modified silicone defoamer; The model of producing as De Qian company is one or more in model that 6500,3100,3600 product and BYK company the produce product that is A530;
Described coupling agent is selected from the Trimethoxy silane class coupling agent with epoxide group; As the model product that is KH-560.
Anticorrosive coating of the present invention can further comprise one or more in following annexing ingredient: titanium dioxide, mica powder.
Based on the gross weight of described anticorrosive coating, the weight percent content of described annexing ingredient can be preferably:
| Titanium dioxide | Below 5% |
| Mica powder | Below 3% |
More preferably, based on the gross weight of described anticorrosive coating, the weight percent content of described annexing ingredient can be:
| Titanium dioxide | 2～4％ |
| Mica powder | 1～3％ |
In one embodiment, based on the gross weight of described anticorrosive coating, the weight percent content of described annexing ingredient can be:
| Titanium dioxide | 3％ |
| Mica powder | 1.5％ |
Described titanium dioxide can be Rutile type Titanium Dioxide or anatase thpe white powder; The product that the model that for example E.I.Du Pont Company produces is R-902;
Described mica powder can be selected from the sericite in powder that Xuzhou Jin Ya powder limited liability company produces, and its particle diameter is preferably 600 orders.
The preparation method of a kind of described anticorrosive coating provided by the invention, comprises the steps:
(1) other the each component outside glass flake is mixed to (for example, using high speed dispersor) according to weight percent content and obtain mixture;
(2) said mixture (is for example milled, use sand mill) be below 30 microns to particle diameter, add solvent to adjust viscosity for being measured as 70～100 seconds with-4 glasss of viscometers of painting, then add glass flake, stir and obtain anticorrosive coating of the present invention.
The using method of a kind of described anticorrosive coating provided by the invention, it comprises the steps:
(1) storage tank internal surface is carried out to sandblast pretreatment (for example, using sandblast machine), stain or the zone of oxidation of removing internal surface, make it reach 2.5 grades of GB Sa, and surfaceness is 50～70 microns;
(2) in anticorrosive coating of the present invention, add solidifying agent, stir, adjust viscosity to being measured as 50～60 seconds with being coated with-4 glasss of viscometers with solvent, then adopt the mode of spraying, brushing or roller coat to be applied on above-mentioned pretreated storage tank internal surface; Described solvent is selected from one or more in epoxy propane butyl ether 501, benzyl glycidyl ether 692, dimethylbenzene, pimelinketone and propyl carbinol;
(3) repeat above-mentioned coating process and reach required coat-thickness (for example, can be 550 microns), then Air drying (for example,, more than 7 days).
The consumption of described solidifying agent is counted 12～20% of described anticorrosive coating according to weight percent; Be preferably 13～18%; Most preferably be 15%.
Described solidifying agent is selected from modified amine compound one or more; The model of producing as Ka Delai company is the product of NX series; For example, NX2007.
Anticorrosive coating of the present invention adopts modifying epoxy resin by organosilicon, can obtain thus the modified epoxy resin paint of high-crosslinking-degree.In addition, the modified epoxy of described high-crosslinking-degree is combined and is obtained the infiltrative anticorrosive coating of high resistance with lepidiod glass flake filler.
Be coated with the alkaline sour water storage tank after anticorrosive coating of the present invention, the cycle of operation is that WF40A sewage storage tank special anti-corrosion erosion coating rises appreciably (model is that WF40A sewage storage tank special anti-corrosion erosion coating, for this environment, part coating shedding phenomenon only also occurs for 1 year) more than half a year than the existing model of coating, compare within the time of a year and a half at least and do not come off than other existing coating, can adapt to direct coal liquefaction process alkalescence sour water medium.
Embodiment
Describe in further detail and explain the present invention below by embodiment, these embodiment are not for limiting the present invention.
High speed dispersor is the GFJ model that Tong Hui chemical machinery company limited of Zhangjagang City produces; Skin grinder is 50 models that Tong Hui chemical machinery company limited of Zhangjagang City produces; Sandblast machine is the XTPSJ-1760 model that Liuzhou enterprise produces.
Embodiment 1
The composition of anticorrosive coating of the present invention and weight percentage:
| Modifying epoxy resin by organosilicon | 37％ |
| Bisphenol F epoxy resin | 25％ |
| Solvent | 15.2％ |
| Carbon black | 0.5％ |
| Dispersion agent | 0.5％ |
| Glass flake | 20％ |
| Auxiliary agent | 1.8％ |
Described modifying epoxy resin by organosilicon is that the model that Evonik Degussa Corp. produces is the product of SILIKOPON EF;
Described bisphenol F epoxy resin is the product that the model of South Asia chemical company production is 170;
Described solvent be dimethylbenzene-propyl carbinol (6: 4) (V/V).
Described carbon black is the product that the model of Dandong treasured scroll colour carbon black company limited production is C311;
Described dispersion agent is the product that the model of De Qian company production is 904;
Described glass flake is the product of 60 order models of Wenan five Yang Fangfucailiaochang productions; Particle diameter is 60 orders;
It is 30% flow agent, 20% defoamer, 50% coupling agent that described auxiliary agent comprises weight percentage;
Described flow agent is the product that the model of De Qian company production is 431;
Described defoamer is the product that the model of De Qian company production is 6500;
Described coupling agent is that model is the product of KH-560.
Preparation: use high speed dispersor to mix according to weight percent other the each component outside above-mentioned glass flake and obtain mixture; Using sand mill to be ground to particle diameter in described mixture is below 30 microns, adds solvent to adjust viscosity for being measured as 100 seconds with-4 glasss of viscometers of painting, then adds described glass flake, stirs and obtains anticorrosive coating of the present invention.
Use: use sandblast machine to carry out sandblast pretreatment storage tank internal surface, remove stain or the zone of oxidation of internal surface, make it reach 2.5 grades of GB Sa, surfaceness is 50～70 microns; Be 15% solidifying agent (product that the model that Ka Delai company produces is NX2007) to adding weight percent content in above-mentioned anticorrosive coating, stir, adjust viscosity to being measured as 60 seconds with being coated with-4 glasss of viscometers with solvent epoxy propane butyl ether 501, then adopt the mode of spraying to be applied on above-mentioned pretreated storage tank internal surface; Repeating above-mentioned coating process, to reach coat-thickness be 550 microns, then Air drying 10 days.
The anticorrosive coating of the present embodiment detects according to standard method, and result is as follows:
Embodiment 2
The composition of anticorrosive coating of the present invention and weight percentage:
| Modifying epoxy resin by organosilicon | 32％ |
| Bisphenol F epoxy resin | 28％ |
| Solvent | 18％ |
| Carbon black | 0.9％ |
| Dispersion agent | 0.4％ |
| Glass flake | 19％ |
| Auxiliary agent | 1.7％ |
Described modifying epoxy resin by organosilicon is that the model that Evonik Degussa Corp. produces is the product of SILIKOPON EF;
Described bisphenol F epoxy resin is the product that the model of South Asia chemical company production is 170;
Described solvent is benzyl glycidyl ether 692;
Described carbon black is the product that the model of Dandong treasured scroll colour carbon black company limited production is C311;
Described dispersion agent is the product that the model of De Qian company production is 926;
Described glass flake is the product of 60 order models of Wenan five Yang Fangfucailiaochang productions; Particle diameter is 60 orders;
It is 30% flow agent, 20% defoamer, 50% coupling agent that described auxiliary agent comprises weight percentage;
Described flow agent is the product that the model of BYK company production is 306;
Described defoamer is the product that the model of BYK company production is A530;
Described coupling agent is that model is the product of KH-560.
Preparation: use high speed dispersor to mix according to weight percent other the each component outside above-mentioned glass flake and obtain mixture; Using sand mill to be ground to particle diameter in described mixture is below 30 microns, adds solvent to adjust viscosity for being measured as 75 seconds with-4 glasss of viscometers of painting, then adds described glass flake, stirs and obtains anticorrosive coating of the present invention.
Use: use sandblast machine to carry out sandblast pretreatment storage tank internal surface, remove stain or the zone of oxidation of internal surface, make it reach 2.5 grades of GB Sa, surfaceness is 50～70 microns; Be 14% solidifying agent (product that the model that Ka Delai company produces is NX2007) to adding weight percent content in above-mentioned anticorrosive coating, stir, adjust viscosity to being measured as 57 seconds with being coated with-4 glasss of viscometers with solvent xylene, then adopt the mode of spraying to be applied on above-mentioned pretreated storage tank internal surface; Repeating above-mentioned coating process, to reach coat-thickness be 550 microns, then Air drying 10 days.
The anticorrosive coating of the present embodiment detects according to standard method, and result is as follows:
Embodiment 3
The composition of anticorrosive coating of the present invention and weight percentage:
| Modifying epoxy resin by organosilicon | 35％ |
| Bisphenol F epoxy resin | 24％ |
| Solvent | 18％ |
| Titanium dioxide | 3.5％ |
| Carbon black | 0.5％ |
| Dispersion agent | 0.5％ |
| Glass flake | 15％ |
| Mica powder | 1.7％ |
| Auxiliary agent | 1.8％ |
Described modifying epoxy resin by organosilicon is that the model that Evonik Degussa Corp. produces is the product of SILIKOPON EF;
Described bisphenol F epoxy resin is the product that the model of South Asia chemical company production is 170;
Described solvent is epoxy propane butyl ether 501;
Described titanium dioxide is the product that the model of E.I.Du Pont Company's production is R-902;
Described carbon black is the product that the model of Dandong treasured scroll colour carbon black company limited production is C311;
Described dispersion agent is the product that the model of De Qian company production is 904;
Described glass flake is the product of 60 order models of Wenan five Yang Fangfucailiaochang productions; Particle diameter is 60 orders;
Described mica powder is the 600 order sericites in powder that Xuzhou Jin Ya powder limited liability company produces;
It is 30% flow agent, 20% defoamer, 50% coupling agent that described auxiliary agent comprises weight percentage;
Described flow agent is the product that the model of De Qian company production is 495;
Described defoamer is the product that the model of De Qian company production is 6500;
Described coupling agent is that model is the product of KH-560.
Preparation: use high speed dispersor to mix according to weight percent content other the each component outside above-mentioned glass flake and obtain mixture; Using sand mill to be ground to particle diameter in described mixture is below 30 microns, adds solvent to adjust viscosity for being measured as 70 seconds with-4 glasss of viscometers of painting, then adds described glass flake, stirs and obtains anticorrosive coating of the present invention.
Use: use sandblast machine to carry out sandblast pretreatment storage tank internal surface, remove stain or the zone of oxidation of internal surface, make it reach 2.5 grades of GB Sa, surfaceness is 50～70 microns; Be 13% solidifying agent (product that the model that Ka Delai company produces is NX2007) to adding weight percent content in above-mentioned anticorrosive coating, stir, adjust viscosity to being measured as 50 seconds with being coated with-4 glasss of viscometers by solvent, n-butanol, then adopt the mode of brushing to be applied on above-mentioned pretreated storage tank internal surface; Repeating above-mentioned coating process, to reach coat-thickness be 550 microns, then Air drying 7 days.
The anticorrosive coating of the present embodiment detects according to standard method, and result is as follows:
Embodiment 4
The composition of anticorrosive coating of the present invention and weight percentage:
| Modifying epoxy resin by organosilicon | 42％ |
| Bisphenol F epoxy resin | 20％ |
| Solvent | 16％ |
| Titanium dioxide | 3.5％ |
| Carbon black | 0.5％ |
| Dispersion agent | 0.5％ |
| Glass flake | 14％ |
| Mica powder | 1.7％ |
| Auxiliary agent | 1.8％ |
Described modifying epoxy resin by organosilicon is that the model that Evonik Degussa Corp. produces is the product of SILIKOPON EF;
Described bisphenol F epoxy resin is the product that the model of South Asia chemical company production is 170;
Described solvent be dimethylbenzene-pimelinketone (6: 4) (V/V);
Described titanium dioxide is the product that the model of E.I.Du Pont Company's production is R-902;
Described carbon black is the product that the model of Dandong treasured scroll colour carbon black company limited production is C311;
Described dispersion agent is the product that the model of De Qian company production is 904;
Described glass flake is the product of 60 order models of Wenan five Yang Fangfucailiaochang productions; Particle diameter is 60 orders;
Described mica powder is the 600 order sericites in powder that Xuzhou Jin Ya powder limited liability company produces;
It is 30% flow agent, 20% defoamer, 50% coupling agent that described auxiliary agent comprises weight percentage;
Described flow agent is the product that the model of De Qian company production is 431;
Described defoamer is the product that the model of De Qian company production is 6500;
Described coupling agent is that model is the product of KH-560.
Preparation: use high speed dispersor to mix according to weight percent other the each component outside above-mentioned glass flake and obtain mixture; Using sand mill to be ground to particle diameter in described mixture is below 30 microns, adds solvent to adjust viscosity for being measured as 80 seconds with-4 glasss of viscometers of painting, then adds described glass flake, stirs and obtains anticorrosive coating of the present invention.
Use: use sandblast machine to carry out sandblast pretreatment storage tank internal surface, remove stain or the zone of oxidation of internal surface, make it reach 2.5 grades of GB Sa, surfaceness is 50～70 microns; Be 18% solidifying agent (product that the model that Ka Delai company produces is NX2007) to adding weight percent content in above-mentioned anticorrosive coating, stir, adjust viscosity to being measured as 55 seconds with being coated with-4 glasss of viscometers with solvent benzyl glycidyl ether 692, then adopt the mode of roller coat to be applied on above-mentioned pretreated storage tank internal surface; Repeating above-mentioned coating process, to reach coat-thickness be 550 microns, then Air drying 10 days.
The anticorrosive coating of the present embodiment detects according to standard method, and result is as follows:
Embodiment 5
The composition of anticorrosive coating of the present invention and weight percentage:
| Modifying epoxy resin by organosilicon | 37％ |
| Bisphenol F epoxy resin | 24％ |
| Solvent | 14％ |
| Carbon black | 0.5％ |
| Dispersion agent | 0.5％ |
| Glass flake | 19％ |
| Mica powder | 3.0％ |
| Auxiliary agent | 2.0％ |
Described modifying epoxy resin by organosilicon is that the model that Evonik Degussa Corp. produces is the product of SILIKOPON EF;
Described bisphenol F epoxy resin is the product that the model of South Asia chemical company production is 170;
Described solvent be dimethylbenzene-propyl carbinol (6: 4) (V/V).
Described carbon black is the product that the model of Dandong treasured scroll colour carbon black company limited production is C311;
Described dispersion agent is the product that the model of De Qian company production is 904;
Described glass flake is the product of 60 order models of Wenan five Yang Fangfucailiaochang productions; Particle diameter is 60 orders;
Described mica powder is the 600 order sericites in powder that Xuzhou Jin Ya powder limited liability company produces;
It is 30% flow agent, 20% defoamer, 50% coupling agent that described auxiliary agent comprises weight percentage;
Described flow agent is the product that the model of De Qian company production is 431;
Described defoamer is the product that the model of De Qian company production is 6500;
Described coupling agent is that model is the product of KH-560.
Preparation: use high speed dispersor to mix according to weight percent other the each component outside above-mentioned glass flake and obtain mixture; Using sand mill to be ground to particle diameter in described mixture is below 30 microns, adds solvent to adjust viscosity for being measured as 90 seconds with-4 glasss of viscometers of painting, then adds described glass flake, stirs and obtains anticorrosive coating of the present invention.
Use: use sandblast machine to carry out sandblast pretreatment storage tank internal surface, remove stain or the zone of oxidation of internal surface, make it reach 2.5 grades of GB Sa, surfaceness is 50～70 microns; Be 15% solidifying agent (product that the model that Ka Delai company produces is NX2007) to adding weight percent content in above-mentioned anticorrosive coating, stir, adjust viscosity to being measured as 60 seconds with being coated with-4 glasss of viscometers with solvent pimelinketone, then adopt the mode of spraying to be applied on above-mentioned pretreated storage tank internal surface; Repeating above-mentioned coating process, to reach coat-thickness be 550 microns, then Air drying 10 days.
The anticorrosive coating of the present embodiment detects according to standard method, and result is as follows:
Embodiment 6
The composition of anticorrosive coating of the present invention and weight percentage:
| Modifying epoxy resin by organosilicon | 23.0％ |
| Bisphenol F epoxy resin | 30.0％ |
| Solvent | 19.0％ |
| Titanium dioxide | 5.0％ |
| Carbon black | 1.0％ |
| Dispersion agent | 0.3％ |
| Glass flake | 20.7％ |
| Auxiliary agent | 1.00％ |
Described modifying epoxy resin by organosilicon is that the model that Evonik Degussa Corp. produces is the product of SILIKOPON EF;
Described bisphenol F epoxy resin is the product that the model of South Asia chemical company production is 170;
Described solvent is benzyl glycidyl ether 692.
Described titanium dioxide is the product that the model of E.I.Du Pont Company's production is R-902.
Described carbon black is the product that the model of Dandong treasured scroll colour carbon black company limited production is C311;
Described dispersion agent is the product that the model of De Qian company production is DP-983;
Described glass flake is the product of 60 order models of Wenan five Yang Fangfucailiaochang productions; Particle diameter is 60 orders;
It is 30% flow agent, 20% defoamer, 50% coupling agent that described auxiliary agent comprises weight percentage;
Described flow agent is the product that the model of De Qian company production is TSP;
Described defoamer is the product that the model of De Qian company production is 3600;
Described coupling agent is that model is the product of KH-560.
Preparation: use high speed dispersor to mix according to weight percent other the each component outside above-mentioned glass flake and obtain mixture; Using sand mill to be ground to particle diameter in described mixture is below 30 microns, adds solvent to adjust viscosity for being measured as 85 seconds with-4 glasss of viscometers of painting, then adds described glass flake, stirs and obtains anticorrosive coating of the present invention.
Use: use sandblast machine to carry out sandblast pretreatment storage tank internal surface, remove stain or the zone of oxidation of internal surface, make it reach 2.5 grades of GB Sa, surfaceness is 50～70 microns; Be 16% solidifying agent (product that the model that Ka Delai company produces is NX2007) to adding weight percent content in above-mentioned anticorrosive coating, stir, (V/V) adjust viscosity to being measured as 60 seconds with being coated with-4 glasss of viscometers with solvent xylene-propyl carbinol (6: 4), then adopt the mode of spraying to be applied on above-mentioned pretreated storage tank internal surface; Repeating above-mentioned coating process, to reach coat-thickness be 550 microns, then Air drying 10 days.
The anticorrosive coating of the present embodiment detects according to standard method, and result is as follows:
Claims (14)
1. an anticorrosive coating, it comprises component: modifying epoxy resin by organosilicon, bisphenol F epoxy resin, solvent, carbon black, dispersion agent, glass flake and auxiliary agent;
Based on the gross weight of described anticorrosive coating, the weight percent content of described each component is:
Described anticorrosive coating adds solidifying agent in use.
2. anticorrosive coating according to claim 1, is characterized in that:
Described solvent is selected from one or more in single epoxy active diluent, dimethylbenzene, pimelinketone and propyl carbinol;
Described dispersion agent is selected from one or more in aniorfic surfactant or high polymer dispersion;
Described auxiliary agent is selected from one or more in flow agent, defoamer and coupling agent;
Described flow agent is selected from one or more in modified silicon ketone flow agent;
Described defoamer is selected from one or more in modified silicone defoamer;
Described coupling agent is selected from the Trimethoxy silane class coupling agent with epoxide group.
3. anticorrosive coating according to claim 2, is characterized in that:
Described bisphenol F epoxy resin is selected from model that South Asia chemical company the produces product that is 170;
Described solvent is selected from one or more in epoxy propane butyl ether 501, benzyl glycidyl ether 692, dimethylbenzene, pimelinketone and propyl carbinol;
Described carbon black is selected from model that Dandong treasured scroll colour carbon black company limited the produces product that is C311;
Described dispersion agent is selected from model that De Qian company the produces product that is 904, the model that BYK company produces is that model that 104, De Qian company produces is 926, the product of DP-983, the model that BYK company produces is one or more in 116,140 product;
Described glass flake is selected from the product that Wenan five Yang Fangfucailiaochang produce;
Described auxiliary agent is selected from one or more in flow agent, defoamer and coupling agent;
Described flow agent is selected from that the model that De Qian company produces is 431,495, the product of TSP, and the model that BYK company produces is one or more in 306,300 product;
It is 6500,3100,3600 product that described defoamer is selected from the model that De Qian company produces, one or more in the product that the model that BYK company produces is A530;
Described coupling agent is selected from the product that model is KH-560.
4. according to the anticorrosive coating described in claim 1～3 any one, it is characterized in that, described anticorrosive coating further comprises one or more in following annexing ingredient: titanium dioxide, mica powder.
5. anticorrosive coating according to claim 4, is characterized in that, based on the gross weight of described anticorrosive coating, the weight percent content of described annexing ingredient is:
Titanium dioxide is below 5%
Mica powder is below 3%.
6. anticorrosive coating according to claim 5, is characterized in that, based on the gross weight of described anticorrosive coating, the weight percent content of described annexing ingredient is:
Titanium dioxide 2～4%
Mica powder 1～3%;
Described titanium dioxide is Rutile type Titanium Dioxide or anatase thpe white powder;
Described mica powder is selected from the sericite in powder that Xuzhou Jin Ya powder limited liability company produces.
7. a preparation method for the anticorrosive coating described in claim 1～6 any one, it comprises the steps:
(1) other the each component outside glass flake is mixed and obtains mixture according to weight percent content;
(2) said mixture being ground to particle diameter is below 30 microns, adds solvent to adjust viscosity for being measured as 70～100 seconds with-4 glasss of viscometers of painting, then adds glass flake, stirs and obtains described anticorrosive coating.
8. a using method for the anticorrosive coating described in claim 1～6 any one, it comprises the steps:
(1) storage tank internal surface is carried out to sandblast pretreatment, remove stain or the zone of oxidation of internal surface, make it reach GB Sa2.5 level, surfaceness is 50～70 microns;
(2) in described anticorrosive coating, add solidifying agent, stir, adjust viscosity to being measured as 50～60 seconds with being coated with-4 glasss of viscometers with solvent, then adopt the mode of spraying, brushing or roller coat to be applied on above-mentioned pretreated storage tank internal surface; Described solvent is selected from one or more in epoxy propane butyl ether 501, benzyl glycidyl ether 692, dimethylbenzene, pimelinketone and propyl carbinol;
(3) repeat above-mentioned coating process and reach required coat-thickness, then Air drying.
9. the using method of anticorrosive coating according to claim 8, is characterized in that, the consumption of described solidifying agent is counted 12～20% of described anticorrosive coating according to weight percent.
10. the using method of anticorrosive coating according to claim 9, is characterized in that, the consumption of described solidifying agent is counted 13～18% of described anticorrosive coating according to weight percent.
The using method of 11. anticorrosive coatings according to claim 10, is characterized in that, the consumption of described solidifying agent is counted 15% of described anticorrosive coating according to weight percent.
12. according to the using method of the anticorrosive coating described in claim 9～11 any one, it is characterized in that, described solidifying agent is selected from modified amine compound one or more.
The using method of 13. anticorrosive coatings according to claim 12, is characterized in that, the model that described solidifying agent is selected from the production of Ka Delai company is the product of NX series.
The using method of 14. anticorrosive coatings according to claim 13, is characterized in that, described solidifying agent is NX2007.
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| CN103436141B (en) * | 2013-08-23 | 2016-04-20 | 苏州长盛机电有限公司 | A kind of anticorrosive metal paint |
| CN106064710B (en) * | 2016-05-27 | 2018-09-28 | 四川蓝星机械有限公司 | Spherical tank anticorrosion process |
| CN106221563A (en) * | 2016-08-23 | 2016-12-14 | 华北水利水电大学 | A kind of two component epoxy class anti-corrosive organic coatings and preparation method thereof and using method |
| CN108264784A (en) * | 2017-12-25 | 2018-07-10 | 衢州南高峰化工股份有限公司 | A kind of silicon-modified epoxy anticorrosive paint and corrosion-inhibiting coating for refrigeration system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1528844A (en) * | 2003-10-14 | 2004-09-15 | 中国人民解放军海军后勤技术装备研究 | Flexible ceramic wear-resistant heat-proof dual-anticorrosive coating |
| CN101372601A (en) * | 2008-10-17 | 2009-02-25 | 洛阳七维防腐工程材料有限公司 | Oil resistant (solvent), heatproof static conducting anti-corrosive paint and preparation thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1528844A (en) * | 2003-10-14 | 2004-09-15 | 中国人民解放军海军后勤技术装备研究 | Flexible ceramic wear-resistant heat-proof dual-anticorrosive coating |
| CN101372601A (en) * | 2008-10-17 | 2009-02-25 | 洛阳七维防腐工程材料有限公司 | Oil resistant (solvent), heatproof static conducting anti-corrosive paint and preparation thereof |
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